feat: 커스텀 Postgres 이미지를 활용한 배포 설정 추가 (#237)

ko_KR.UTF-8 로캘을 지원하는 커스텀 Postgres 이미지 빌드 및 적용.
dev 구성에서 해당 이미지를 사용하도록 docker-compose 업데이트.

Author: soonduck-dreams

.github/workflows/deploy-to-dev-ec2-docker.yml

@@ -57,7 +57,10 @@ jobs:
           host: ${{ secrets.EC2_HOST }}
           username: ubuntu
           key: ${{ secrets.EC2_SSH_PRIVATE_KEY }}
-          source: deploy/docker-compose.yml,deploy/docker-compose.dev.yml
+          source: |
+            deploy/docker-compose.yml
+            deploy/docker-compose.dev.yml
+            deploy/postgres-ko/**
           target: ~/saerok/
           strip_components: 1
 
@@ -113,14 +116,17 @@ jobs:
             add_kv KAKAO_CLIENT_SECRET "${{ secrets.KAKAO_CLIENT_SECRET }}"
             add_kv KAKAO_APP_ID "${{ secrets.KAKAO_APP_ID }}"
             add_kv KMS_KEY_ID "${{ secrets.KMS_KEY_ID }}"
+            
+            # 커스텀 postgres 이미지 빌드
+            docker build -t saerok-postgres:ko ./postgres-ko
 
             # 3) Pull & Recreate with resource limits from dev.yml
             docker compose \
               --env-file "$ENV_FILE" \
               -p saerok \
               -f docker-compose.yml \
               -f docker-compose.dev.yml \
-              pull --quiet
+              pull app --quiet
 
             docker compose \
               --env-file "$ENV_FILE" \

deploy/docker-compose.dev.yml

@@ -30,7 +30,7 @@ services:
       - postgres
 
   postgres:
-    image: postgis/postgis:17-3.5
+    image: saerok-postgres:ko
     container_name: saerok-postgres-dev
     restart: unless-stopped
     stop_grace_period: 15s

deploy/postgres-ko/Dockerfile

@@ -0,0 +1,13 @@
+# deploy/postgres-ko/Dockerfile
+# PostGIS + ko_KR.UTF-8
+FROM postgis/postgis:17-3.5
+
+# ko_KR.UTF-8 로캘 생성
+RUN apt-get update && \
+    apt-get install -y locales && \
+    sed -i 's/# ko_KR.UTF-8 UTF-8/ko_KR.UTF-8 UTF-8/' /etc/locale.gen && \
+    locale-gen && \
+    rm -rf /var/lib/apt/lists/*
+
+ENV LANG=ko_KR.UTF-8
+ENV LC_ALL=ko_KR.UTF-8